From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 29ADD23A9AD; Mon, 17 Nov 2025 01:34:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763343297; cv=none; b=kH5aotPGWqPODkg7jz3c1622tbBDbv+Q2tvyIO2VOJ/JbDt38TK5N4QhjictUXhoDLMLysaYNmtnonEG1ZB9OFpTw5DjXVei9G/gMqt0UKqQaJiGs1OnyFrUznblqI07Kr8a3GMzGpLQ86SRquSpHa1kIARE4ZtqFrtGUyYtJe4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763343297; c=relaxed/simple; bh=d6ppcAPUpjOhh7vADKkdgqwy+QgwOgTtph0D4nkns/8=; h=Date:To:From:Subject:Message-Id; b=lMhjMsuRLQeSVCKla5wS4Fp7jhjHoYU9ABklmpS31OTzyaXB+Rl7sq1STfu+OYFFI1SDwjIb6DwXwV2H8HLW8QGPgZQym42honbsfmQuU1uLfCVTUL9VuGlHYr1kzMhuaw06isNunJUhJp51lVAnp7iIQ0yqhl1VQHKTGH94sAQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=Wevyb7Ko; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Wevyb7Ko" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CDB43C2BC86; Mon, 17 Nov 2025 01:34:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1763343296; bh=d6ppcAPUpjOhh7vADKkdgqwy+QgwOgTtph0D4nkns/8=; h=Date:To:From:Subject:From; b=Wevyb7KovRCeMfOs37T05G0s+xkak3UTy8oAYccGBzLZixZSFrJy+7AzOz892ZWbH j+7JZNgWNZ1OZJjX0h+ori4Twzp5qBiosXocQ6aq7szE/PN6YuJM+goMj1+Xc43hpb tauRxK1FQnKfX405h8xSDZ+1X8Q+fHyl5lHVLcYg= Date: Sun, 16 Nov 2025 17:34:56 -0800 To: mm-commits@vger.kernel.org,wangkefeng.wang@huawei.com,stable@vger.kernel.org,davidgow@google.com,brendan.higgins@linux.dev,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-damon-tests-core-kunit-handle-alloc-failures-on-damon_test_merge_two.patch removed from -mm tree Message-Id: <20251117013456.CDB43C2BC86@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/damon/tests/core-kunit: handle alloc failures on damon_test_merge_two() has been removed from the -mm tree. Its filename was mm-damon-tests-core-kunit-handle-alloc-failures-on-damon_test_merge_two.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: SeongJae Park Subject: mm/damon/tests/core-kunit: handle alloc failures on damon_test_merge_two() Date: Sat, 1 Nov 2025 11:20:00 -0700 damon_test_merge_two() is assuming all dynamic memory allocation in it will succeed. Those are indeed likely in the real use cases since those allocations are too small to fail, but theoretically those could fail. In the case, inappropriate memory access can happen. Fix it by appropriately cleanup pre-allocated memory and skip the execution of the remaining tests in the failure cases. Link: https://lkml.kernel.org/r/20251101182021.74868-7-sj@kernel.org Fixes: 17ccae8bb5c9 ("mm/damon: add kunit tests") Signed-off-by: SeongJae Park Cc: Brendan Higgins Cc: David Gow Cc: Kefeng Wang Cc: [5.15+] Signed-off-by: Andrew Morton --- mm/damon/tests/core-kunit.h | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/mm/damon/tests/core-kunit.h~mm-damon-tests-core-kunit-handle-alloc-failures-on-damon_test_merge_two +++ a/mm/damon/tests/core-kunit.h @@ -188,11 +188,21 @@ static void damon_test_merge_two(struct int i; t = damon_new_target(); + if (!t) + kunit_skip(test, "target alloc fail"); r = damon_new_region(0, 100); + if (!r) { + damon_free_target(t); + kunit_skip(test, "region alloc fail"); + } r->nr_accesses = 10; r->nr_accesses_bp = 100000; damon_add_region(r, t); r2 = damon_new_region(100, 300); + if (!r2) { + damon_free_target(t); + kunit_skip(test, "second region alloc fail"); + } r2->nr_accesses = 20; r2->nr_accesses_bp = 200000; damon_add_region(r2, t); _ Patches currently in -mm which might be from sj@kernel.org are mm-damon-tests-core-kunit-remove-dynamic-allocs-on-damos_test_commit_filter.patch mm-damon-tests-core-kunit-split-out-damos_test_commit_filter-core-logic.patch mm-damon-tests-core-kunit-extend-damos_test_commit_filter_for-for-union-fields.patch mm-damon-tests-core-kunit-add-test-cases-to-damos_test_commit_filter.patch mm-damon-tests-core-kunit-add-damos_commit_quota_goal-test.patch mm-damon-tests-core-kunit-add-damos_commit_quota_goals-test.patch mm-damon-tests-core-kunit-add-damos_commit_quota-test.patch mm-damon-core-pass-migrate_dests-to-damos_commit_dests.patch mm-damon-tests-core-kunit-add-damos_commit_dests-test.patch mm-damon-tests-core-kunit-add-damos_commit-test.patch mm-damon-tests-core-kunit-add-damon_commit_target_regions-test.patch mm-damon-rename-damos-core-filter-helpers-to-have-word-core.patch mm-damon-rename-damos-filters-to-damos-core_filters.patch mm-damon-vaddr-cleanup-using-pmd_trans_huge_lock.patch mm-damon-vaddr-use-vm_normal_folio_pmd-instead-of-damon_get_folio.patch mm-damon-vaddr-consistently-use-only-pmd_entry-for-damos_migrate.patch mm-damon-tests-core-kunit-remove-damon_min_region-redefinition.patch selftests-damon-sysfspy-merge-damon-status-dumping-into-commitment-assertion.patch docs-mm-damon-maintainer-profile-fix-a-typo-on-mm-untable-link.patch docs-mm-damon-maintainer-profile-fix-grammartical-errors.patch